WIRE HEATED TUBE WITH TEMPERATURE CONTROL SYSTEM, TUBE TYPE DETECTION, AND ACTIVE OVER TEMPERATURE PROTECTION FOR HUMIDIFIER FOR RESPIRATORY APPARATUS

摘要

A PAP system for delivering breathable gas to a patient includes a flow generator to generate a supply of breathable gas to be delivered to the patient; a humidifier including a heating plate to vaporize water and deliver water vapor to humidify the supply of breathable gas; a heated tube configured to heat and deliver the humidified supply of breathable gas to the patient; a power supply configured to supply power to the heating plate and the heated tube; and a controller configured to control the power supply to prevent overheating of the heating plate and the heated tube.

主权项

1. A method of preventing overheating in a respiratory system adapted to provide a supply of humidified pressurized breathable gas, comprising:
sensing an ambient temperature using an ambient temperature sensor; sensing a heating component temperature using a heating component temperature sensor; determining if the sensed ambient temperature and the sensed heating component temperature when considered together are implausible; and if the sensed ambient temperature and the sensed heating component temperature are determined to be implausible, preventing heating of the heating component.